diff options
| -rw-r--r-- | drivers/char/moxa.c | 62 |
1 files changed, 21 insertions, 41 deletions
diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c index b2f3de0195c9..fdfa7783e992 100644 --- a/drivers/char/moxa.c +++ b/drivers/char/moxa.c @@ -215,7 +215,6 @@ static void moxa_receive_data(struct moxa_port *); */ static int MoxaDriverIoctl(struct tty_struct *, unsigned int, unsigned long); static int MoxaDriverPoll(void); -static int MoxaPortsOfCard(int); static void MoxaPortEnable(struct moxa_port *); static void MoxaPortDisable(struct moxa_port *); static int MoxaPortSetTermio(struct moxa_port *, struct ktermios *, speed_t); @@ -715,6 +714,9 @@ static int moxa_init_board(struct moxa_board_conf *brd, struct device *dev) brd->ready = 1; + if (!timer_pending(&moxaTimer)) + mod_timer(&moxaTimer, jiffies + HZ / 50); + return 0; err_free: kfree(brd->ports); @@ -856,8 +858,6 @@ static int __init moxa_init(void) return -1; } - mod_timer(&moxaTimer, jiffies + HZ / 50); - /* Find the boards defined from module args. */ #ifdef MODULE { @@ -1285,10 +1285,10 @@ static void moxa_hangup(struct tty_struct *tty) static void moxa_poll(unsigned long ignored) { - register int card; struct moxa_port *ch; - struct tty_struct *tp; - int i, ports; + struct tty_struct *tty; + unsigned int card; + int i; del_timer(&moxaTimer); @@ -1296,36 +1296,38 @@ static void moxa_poll(unsigned long ignored) mod_timer(&moxaTimer, jiffies + HZ / 50); return; } + for (card = 0; card < MAX_BOARDS; card++) { - if ((ports = MoxaPortsOfCard(card)) <= 0) + if (!moxa_boards[card].ready) continue; ch = moxa_boards[card].ports; - for (i = 0; i < ports; i++, ch++) { + for (i = 0; i < moxa_boards[card].numPorts; i++, ch++) { if ((ch->asyncflags & ASYNC_INITIALIZED) == 0) continue; if (!(ch->statusflags & THROTTLE) && (MoxaPortRxQueue(ch) > 0)) moxa_receive_data(ch); - if ((tp = ch->tty) == 0) + tty = ch->tty; + if (tty == NULL) continue; if (ch->statusflags & LOWWAIT) { if (MoxaPortTxQueue(ch) <= WAKEUP_CHARS) { - if (!tp->stopped) { + if (!tty->stopped) { ch->statusflags &= ~LOWWAIT; - tty_wakeup(tp); + tty_wakeup(tty); } } } - if (!I_IGNBRK(tp) && (MoxaPortResetBrkCnt(ch) > 0)) { - tty_insert_flip_char(tp, 0, TTY_BREAK); - tty_schedule_flip(tp); + if (!I_IGNBRK(tty) && (MoxaPortResetBrkCnt(ch) > 0)) { + tty_insert_flip_char(tty, 0, TTY_BREAK); + tty_schedule_flip(tty); } if (MoxaPortDCDChange(ch)) { if (ch->asyncflags & ASYNC_CHECK_CD) { if (MoxaPortDCDON(ch)) wake_up_interruptible(&ch->open_wait); else { - tty_hangup(tp); + tty_hangup(tty); wake_up_interruptible(&ch->open_wait); ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE; } @@ -1671,15 +1673,14 @@ copy: return -ENOIOCTLCMD; } -int MoxaDriverPoll(void) +static int MoxaDriverPoll(void) { struct moxa_board_conf *brd; struct moxa_port *p; - register ushort temp; - register int card; void __iomem *ofsAddr; void __iomem *ip; - int port, ports; + unsigned int port, ports, card; + ushort temp; for (card = 0; card < MAX_BOARDS; card++) { brd = &moxa_boards[card]; @@ -1729,19 +1730,8 @@ int MoxaDriverPoll(void) } } moxaLowWaterChk = 0; - return (0); -} -/***************************************************************************** - * Card level function: * - * 1. MoxaPortsOfCard(int cardno); * - *****************************************************************************/ -int MoxaPortsOfCard(int cardno) -{ - - if (moxa_boards[cardno].boardType == 0) - return (0); - return (moxa_boards[cardno].numPorts); + return 0; } /***************************************************************************** @@ -1812,16 +1802,6 @@ int MoxaPortsOfCard(int cardno) * -1 : no any Moxa card. * * - * Function 4: Get the ports of this card. - * Syntax: - * int MoxaPortsOfCard(int cardno); - * - * int cardno : card number (0 - 3) - * - * return: 0 : this card is invalid - * 8/16/24/32 - * - * * Function 6: Enable this port to start Tx/Rx data. * Syntax: * void MoxaPortEnable(int port); |